在设置了Angular的ngModel时，在nb-select中启用多个选择

import { Component } from '@angular/core';
import { FormControl, FormGroup, FormArray } from '@angular/forms';

@Component({
  selector: 'app-example',
  template: `
    <form [formGroup]="form">
      <nb-select formControlName="selectedOptions" multiple>
        <nb-option *ngFor="let option of options" [value]="option">{{ option }}</nb-option>
      </nb-select>
    </form>
  `,
})
export class ExampleComponent {
  form: FormGroup;
  options: string[] = ['Option 1', 'Option 2', 'Option 3'];

  constructor() {
    this.form = new FormGroup({
      selectedOptions: new FormArray([]),
    });
  }
}

import { Component, OnInit } from '@angular/core';
import { FormControl, FormGroup, FormArray } from '@angular/forms';

@Component({
  selector: 'app-example',
  template: `
    <form [formGroup]="form">
      <nb-select formControlName="selectedOptions" multiple>
        <nb-option *ngFor="let option of options" [value]="option">{{ option }}</nb-option>
      </nb-select>
    </form>
  `,
})
export class ExampleComponent implements OnInit {
  form: FormGroup;
  options: string[] = ['Option 1', 'Option 2', 'Option 3'];

  constructor() {
    this.form = new FormGroup({
      selectedOptions: new FormArray([]),
    });
  }

  ngOnInit() {
    const selectedOptions = this.form.get('selectedOptions') as FormArray;
    selectedOptions.setValue(['Option 1', 'Option 3']);
  }
}